Writing instrument



FIG. 1 is a perspective view showing our new design for a writing instrument;

FIG. 2 is a front view of the writing instrument of FIG. 1;

FIG. 3 is a right side view of the writing instrument of FIG. 1;

FIG. 4 is a left side view of the writing instrument of FIG. 1;

FIG. 5 is a back view of the writing instrument of FIG. 1;

FIG. 6 is a top plan view of the writing instrument of FIG. 1; and,

FIG. 7 is a bottom plan view of the writing instrument of FIG. 1.

The broken lines showing the writing instrument body, the clip, and the lines on the cap and the writing instrument body are included for the purpose of showing portions of the writing instrument that form no part of the claimed design. 

The ornamental design for a writing instrument, as shown and described. 